Copper Test Strips 5-200 ppm Reflectoquant 1 PK *Requires RQflex 2 EMD# 16950-1

Purchase Copper Test Strips 5-200 ppm Reflectoquant 1 PK *Requires RQflex 2 EMD# 16950-1

Copper Test Strips 5-200 ppm Reflectoquant   1 PK *Requires RQflex 2 EMD# 16950-1 MSDS (Material Safety Data Sheet)







Reflectoquant® Copper Test Strips

Reflectoquant® Copper Test, Catalog No. 16984/1

1. Method

Cu(II) ions are reduced to Cu(I) ions by a combination of reducing agents. These Cu(I) ions react with a 2.2'biquinoline (cuproin) to form a purple complex, the concentration of which is determined reflectometrically.

2. Measuring Range and Number of Determinations

Measuring Range1) Number of Determinations
5 - 200mg/l Cu 50

1) for measurement of concentrations > 200mg/l Cu, see section 6

3. Applications

This test measures both Cu(II) ions as well as Cu(I) ions.

Sample Material:

Wastewater, especially from the electroplating and printing industries
Wine

4. Influence of Foreign Substances

This was checked - in the case of interfering ions up to concentrations of 1,000mg/l - in solutions containing 50mg/l and 0mg/l Cu. The concentrations of foreign substances given in the table lie below the limit at which the determination is interfered with:

Concentrations of Foreign Substances in mg/l or %

Ag+ 1,000
Al3+ 1,000
Ascorbate 1,000
BO33- 1,000
Ca2+ 1,000
Cd2+ 1,000
Citrate 1,000
CN- 100
CO32- 1,000
Fe2+ 1,000
Fe3 1,000
Mg2+ 1,000
Mn2+ 1,000
Ni2+ 1,000
NO2- 100
NO3- 1,000
Oxalate 1,000
Pb2+ 1,000
PO43- 1,000
S2O32- 1,000
Tartrate 1,000
Zn2+ 100
EDTA 100
Anionic Surfactants1) 1,000
Cationic Surfactants2) 1,000
Nonionic Surfactants3) 1,000
H2O2 1,000
NaCl 10%
Na2SO4 20%

1) tested with Na-dodecyl sulfate

2) tested with N-cetylpyridinium chloride

3) tested with polyvinyl pyrrolidone

5. Reagents and Auxiliaries

The analytic test strips are stable at least up to the date stated on the pack when stored in the closed tube at +15 to +25°·C.

Package Contents:

Tube containing 50 analytical test strips
Bar code strip

Other Reagents:

EM Quant® Copper Test, Cat. No. 10003, measuring range 10-300mg/l Cu

Universal indicator strips pH 0-14, Cat. No. 9590

Sodium acetate GR, Cat.No. SX0255

Sulfuric acid 25% GR, Cat No. SX1243M

Copper standard solution ready for use, 1,000mg/l Cu, Cat. No. CX1917

6. Preparation

  • Check whether the copper content is within the measuring range

Use the EM Quant® Copper Test as a guide. Samples containing more than 200mg/l Cu must be diluted with distilled water.

  • The pH must be within the range 2-6. Check with universal indicator strips. If pH is lower than 2, buffer with sodium acetate; if greater than 6, add sulfuric acid dropwise

7. Procedure

Observe the instructions for the RQflex Reflectometer.

The following applies to the Copper Test:

Measurement procedure A. Stored reaction time: 30 sec.

  • Remove 1 analytical test strip and immediately reclose the tube.
  • Press START button of the reflectometer and at the same time immerse both reaction zones of the test strip in the sample solution (5-25°C) for approx. 2 sec.
  • Shake off excess liquid from the test strip
  • As soon as the beeper sounds (5 sec. before end of reaction time), insert the test strip all the way into the strip adapter with the reaction zones facing the display.
  • Read off the result from the display. The result is automatically stored.

Notes:

  • If the test strip is inserted into the adapter after the reaction time has expired, renewed depression of the START button may result in a false reading of the copper concentration.
  • At the end of each workday, cleanse the strip adapter thoroughly with water or ethanol.

8. Method Control

To check analytical test strips, equipment and procedure:

Dilute copper standard solution to 100mg/l Cu and analyze as described in section 7.

Purchase Copper Test Strips 5-200 ppm Reflectoquant 1 PK *Requires RQflex 2 EMD# 16950-1

  • Gallade Part#: 169841
  • Mfr Part#: 16984-1
  • Brand: EMD Chemicals EM Science
  • Container: 1 PK of 50 Strips

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